[Christ]

Originally Posted by i_am_socket

At higher speeds, the mass is closer to the rims for better momentum. Interesting concept and apparently, on the right course, can increase average speed.

This was also a concept that was used for a variable gearing system on bikes. I never personally saw one in use, but I saw them displayed at the local bike shop when I was a kid, and it didn't seem like too many people bought into it.

Faster you went, larger the rear sprocket would get... only in final gear though, and it had extra sets of teeth that would fill in the gaps to keep the sprocket "round" so the chain wouldn't leap.